EP1731254A1 - Méthode de soudage par friction oscillant de pièces avec une rainure fermée sur au moins l'une pièce localisée au voisnage de la zone d'assemblage - Google Patents

Méthode de soudage par friction oscillant de pièces avec une rainure fermée sur au moins l'une pièce localisée au voisnage de la zone d'assemblage Download PDF

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Publication number
EP1731254A1
EP1731254A1 EP06011461A EP06011461A EP1731254A1 EP 1731254 A1 EP1731254 A1 EP 1731254A1 EP 06011461 A EP06011461 A EP 06011461A EP 06011461 A EP06011461 A EP 06011461A EP 1731254 A1 EP1731254 A1 EP 1731254A1
Authority
EP
European Patent Office
Prior art keywords
components
joining
friction welding
joined
blade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06011461A
Other languages
German (de)
English (en)
Other versions
EP1731254B1 (fr
Inventor
Joachim Dr. Bamberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MTU Aero Engines AG
Original Assignee
MTU Aero Engines GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MTU Aero Engines GmbH filed Critical MTU Aero Engines GmbH
Publication of EP1731254A1 publication Critical patent/EP1731254A1/fr
Application granted granted Critical
Publication of EP1731254B1 publication Critical patent/EP1731254B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/005—Repairing methods or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/1205—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using translation movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/129—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding specially adapted for particular articles or workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P6/00—Restoring or reconditioning objects
    • B23P6/002—Repairing turbine components, e.g. moving or stationary blades, rotors
    • B23P6/005—Repairing turbine components, e.g. moving or stationary blades, rotors using only replacement pieces of a particular form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3061—Fixing blades to rotors; Blade roots ; Blade spacers by welding, brazing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/001—Turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/20—Manufacture essentially without removing material
    • F05B2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F05B2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
    • F05B2230/239—Inertia or friction welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/80—Repairing, retrofitting or upgrading methods

Definitions

  • the invention relates to a method for joining components, in particular for joining a blade to a rotor base body in the manufacture or repair of an integrally bladed gas turbine rotor.
  • Friction welding is one of the so-called pressure welding processes.
  • components are joined by friction or connected to each other.
  • linear friction welding one component is translationally reciprocated, whereas the other component is stationary and pressed with a certain force against the moving component.
  • joining surfaces of the components to be joined adapt to each other by hot forging.
  • Linear friction welding is one of the so-called oscillating friction welding processes.
  • Other friction welding processes are so-called rotary friction welding and so-called friction stir welding.
  • the present invention is based on the problem to provide a novel method for joining components.
  • the method comprises at least the following steps: a) provision of two components to be joined or joined to one another, wherein each of the components has a joining surface to which the components are to be joined to form a joining zone; b) introducing at least one circumferential groove in at least one of the components to be joined together or to be joined to each other, wherein the or each groove is introduced into the respective component adjacent to the respective joining surface of the component; c) aligning the two components to be joined together at their joining surfaces; d) connecting the two components by oscillating friction welding, in particular by linear friction welding.
  • At least one circumferential groove in at least one of the components to be joined or joined to one another which is positioned adjacent to the respective joining surface of the component.
  • an elasticity in the edge region of the joining surfaces is established, which ensures a mechanical relief of the edge region of the joining surfaces during linear friction welding.
  • normal stresses and shear stresses can be reduced in the edge region of the joining surfaces, which ensures that the joining surfaces in linear friction welding uniform heating.
  • the formation of argon-filled tubular pores in the edge region of the joining surface can be effectively prevented in this way.
  • an elastically soft sealing lip is realized, which prevents the formation of argon-filled hose pores in the edge portions of the joining surfaces or the joining zone. As a result, the vibration resistance of the joining zone can be improved.
  • FIG. 1 illustrates the method according to the invention for joining components using the example of the manufacture or repair of an integrally scooped gas turbine rotor, wherein according to FIG. 1, an airfoil 12 of a rotor blade is to be attached to a blade bump 10 of a rotor base body 11.
  • the joining of the blade 12 to the blade bump 10 of the rotor base body 11 takes place in the sense of the present invention by oscillating friction welding, in particular by linear friction welding, in which case the blade bump 10 and the blade 12 in the region of joining surfaces 13 and 14 thereof to form a joint zone 15th be connected to each other.
  • the two components After aligning the two components to be joined together, namely the airfoil 12 relative to the blade 10 in the region of their joining surfaces 13 and 14, the two components are connected by oscillating friction welding, namely by linear friction welding, for which purpose preferably the airfoil 12 in the sense of Double arrow 16 is translationally reciprocated, whereas the blade bump 10 is stationary and is pressed after reaching a sufficient heating of the joining surfaces 13 and 14 of the blade 12 and blade 10 in the direction of arrow 17 with a certain force against the moving blade 12. Of course, this compression force can also be applied via the blade 12.
  • the oscillating friction welding takes place under a protective gas atmosphere, preferably under a so-called argon shower.
  • a circumferential groove 18 is introduced into the blade protuberance 10 of the rotor base body 11, namely adjacent to the joining surface 13 of the blade bump 10.
  • This is an elastic soft sealing lip provided in the edge region of the joining surface 13, which ensures a mechanical relief of the edge region of the joining surfaces 13 and 14 by reducing the normal stresses and shear stresses in the edge region of the joining zone 15 and in the edge region of the joining surfaces 13 and 14.
  • the formation of argon-filled tubular pores in the edge region of the joining zone 15, namely at the free sections of the joining surfaces 13 and 14 forming during the translational reciprocating movement, can thus be effectively prevented. This makes it possible to provide in the oscillating or linear friction welding joining zones with an optimized strength, in particular an optimized vibration resistance.
  • a peripheral groove 18 adjacent to the joining surface 13 is merely introduced into the blade protuberance 10. It should be noted at this point that, in the context of the present invention, several grooves 18 can be introduced into the blade bump 10 with increasing distance from the joining surface 13 thereof. According to a further embodiment of the present invention, at least one such circumferential groove can be introduced both in the blade hump 10 and in the blade leaf 12, which in each case are in turn positioned adjacent to the respective joining surfaces 13 and 14. It is also possible to introduce at least one such circumferential groove only in the blade 12 adjacent to the joining surface 14 thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP06011461A 2005-06-09 2006-06-02 Méthode de soudage par friction oscillant de pièces avec une rainure fermée sur au moins l'une pièce localisée au voisnage de la zone d'assemblage Not-in-force EP1731254B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005026497A DE102005026497A1 (de) 2005-06-09 2005-06-09 Verfahren zum Fügen von Bauteilen

Publications (2)

Publication Number Publication Date
EP1731254A1 true EP1731254A1 (fr) 2006-12-13
EP1731254B1 EP1731254B1 (fr) 2008-08-20

Family

ID=36954123

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06011461A Not-in-force EP1731254B1 (fr) 2005-06-09 2006-06-02 Méthode de soudage par friction oscillant de pièces avec une rainure fermée sur au moins l'une pièce localisée au voisnage de la zone d'assemblage

Country Status (3)

Country Link
US (1) US7757927B2 (fr)
EP (1) EP1731254B1 (fr)
DE (2) DE102005026497A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101947712A (zh) * 2010-09-08 2011-01-19 徐海 一种机械传动轴修复方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007062557A1 (de) * 2007-12-22 2009-06-25 Mtu Aero Engines Gmbh Verfahren zum Herstellen eines integral beschaufelten Rotors sowie Rotor
DE102014222006A1 (de) * 2014-10-29 2016-05-04 Robert Bosch Gmbh Herstellungsverfahren von Elektronikgehäusen
US9551230B2 (en) * 2015-02-13 2017-01-24 United Technologies Corporation Friction welding rotor blades to a rotor disk

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5495977A (en) * 1991-05-17 1996-03-05 Hildebrandt-Spulen-Bobbins Gmbh Bobbin for fibrous wound material and method for producing the same
US20030168494A1 (en) * 2002-03-07 2003-09-11 The Boeing Company Preforms for forming machined structural assemblies
US20030197049A1 (en) * 2002-04-20 2003-10-23 Bagnall Alexander J. Friction welding
US20050124432A1 (en) * 2003-12-08 2005-06-09 Chun-Yung Huang Golf club head with a structure for friction welding and manufacturing method therefor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62191478A (ja) * 1986-02-19 1987-08-21 日本碍子株式会社 セラミツクス・金属結合体
US5865364A (en) * 1996-12-24 1999-02-02 United Technologies Corporation Process for linear friction welding
GB9713395D0 (en) * 1997-06-25 1997-08-27 Rolls Royce Plc Improvements in or relating to the friction welding of components
US6219916B1 (en) * 1997-12-19 2001-04-24 United Technologies Corporation Method for linear friction welding and product made by such method
US6478545B2 (en) * 2001-03-07 2002-11-12 General Electric Company Fluted blisk
ITMI20022630A1 (it) * 2002-12-12 2004-06-13 Consulnet Italia S R L Processo di brasatura a forno

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5495977A (en) * 1991-05-17 1996-03-05 Hildebrandt-Spulen-Bobbins Gmbh Bobbin for fibrous wound material and method for producing the same
US20030168494A1 (en) * 2002-03-07 2003-09-11 The Boeing Company Preforms for forming machined structural assemblies
US20030197049A1 (en) * 2002-04-20 2003-10-23 Bagnall Alexander J. Friction welding
US20050124432A1 (en) * 2003-12-08 2005-06-09 Chun-Yung Huang Golf club head with a structure for friction welding and manufacturing method therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101947712A (zh) * 2010-09-08 2011-01-19 徐海 一种机械传动轴修复方法
CN101947712B (zh) * 2010-09-08 2012-08-15 徐海 一种机械传动轴修复方法

Also Published As

Publication number Publication date
DE102005026497A1 (de) 2006-12-14
US20060278685A1 (en) 2006-12-14
EP1731254B1 (fr) 2008-08-20
DE502006001362D1 (de) 2008-10-02
US7757927B2 (en) 2010-07-20

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